No one knows transmissions & torque converters like

Sonnax

No one knows transmissions & torque converters like 2008-sonnax-logo-white

Transmission
Transmission
Torque Converter
Torque Converter
High Performance
High Performance
Driveline
Driveline
Other Part Categories: Harley-Davidson® Replacement Bearings Ring Gears Power Train Savers® Shop Equipment
Smart-Tech® High Capacity Input Shaft & Piston Kit

Chrysler 47RE, 47RH, 48RE Smart-Tech® High Capacity Input Shaft & Piston Kit
20% More direct clutch capacity than OE.

Extreme Duty Intermediate Shaft

Chrysler 47RE, 47RH, 48RE Extreme Duty Intermediate Shaft
Delivers maximum strength and resistance to fracture for high-horsepower applications.

Powerglide Performance Slip Yoke

TH400 Performance Slip Yoke
Achieve superior strength and durability for high horsepower and torque capacity applications.

Watch for the Sonnax Tech Van coming to a city new you.

Learn more about the Sonnax Roadshow!

Vacuum testing

Watch the new Vacuum Testing Videos from Sonnax

Which Sonnax Kit is Right for Your Rebuild?

Line Pressure Booster Kit

Line Pressure Booster Kits
Affordable kit for big performance without a big price tag.

Zip Kits®

Zip Kits®
The first step in correcting common shift problems.

The Sure Cure®

The Sure Cure®
Comprehensive kit for big problems you don't want back.

Performance Packs

Performance Packs
The best parts for performance & heavy duty recalibration.

 

Direct/Input/High & Low Reverse Clutch Solenoid RE5R05A Direct/Input/High & Low Reverse Clutch Solenoid
Pressure Switch Rebuild Master Pack GM 6-Speed
Pressure Switch Rebuild Master Pack
Forward Clutch Drum Ford 4R70W, 4R70E, 4R75W, 4R75E Forward Clutch Drum
Piston Plate Ford 6R60, 6R75W Piston Plate
Front Cover Pilot Aisin Seiki Front Cover Pilot
Thrust Bearing Mercedes 722.9 (Late) Turbine-Side Thrust Bearing
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